* config.sub (psp): Recognize.

* testsuite/config-sub.data: Add test case.

Signed-off-by: Ben Elliston <bje@air.net.au>

config.sub

@@ -2,7 +2,7 @@
 # Configuration validation subroutine script.
 #   Copyright 1992-2020 Free Software Foundation, Inc.
 
-timestamp='2020-05-04'
+timestamp='2020-06-18'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -477,6 +477,10 @@ case $1 in
 				basic_machine=hppa-unknown
 				os=linux
 				;;
+			psp)
+				basic_machine=mipsallegrexel-sony
+				os=psp
+				;;
 			pw32)
 				basic_machine=i586-unknown
 				os=pw32
@@ -1138,6 +1142,10 @@ case $cpu-$vendor in
 		cpu=nsx
 		vendor=tandem
 		;;
+	mipsallegrexel-sony)
+		cpu=mipsallegrexel
+		vendor=sony
+		;;
 	s390-*)
 		cpu=s390
 		vendor=ibm
@@ -1507,6 +1515,8 @@ case $os in
 		;;
 	ios)
 		;;
+	psp)
+		;;
 	none)
 		;;
 	*-eabi)